638886190

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1\times {\mathrm{2729}}^1$

素因数の和:3348

約数の個数: 32

約数和(自身を含む): 1180539360

約数和(自身を除く): 541653170

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 571, 1142, 2729, 2855, 5458, 5710, 13645, 23411, 27290, 46822, 111889, 117055, 223778, 234110, 559445, 1118890, 1558259, 3116518, 7791295, 15582590, 63888619, 127777238, 319443095, 638886190]

約数ペア:

[(1, 638886190), (2, 319443095), (5, 127777238), (10, 63888619), (41, 15582590), (82, 7791295), (205, 3116518), (410, 1558259), (571, 1118890), (1142, 559445), (2729, 234110), (2855, 223778), (5458, 117055), (5710, 111889), (13645, 46822), (23411, 27290)]